
package com.itheima.controller.backend.security;

import com.itheima.mapper.UserMapper;
import com.itheima.pojo.Menu;
import com.itheima.pojo.Permission;
import com.itheima.pojo.Role;
import com.itheima.pojo.User;
//import com.itheima.service.UserService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

@Service
@Slf4j
public class SpringSecurityUserService implements UserDetailsService {
    //查找服务，实现查询数据库
/*@Autowired
    private UserService userService;*/

    @Autowired
    private UserMapper userMapper;

    //根据用户名查询数据库中用户信息
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = userMapper.getByUsername(username);
        if (user == null){
            throw new UsernameNotFoundException("用户不存在");
        }
       Set<Role> roles = userMapper.getRolesByUserId(user.getId());
        user.setRoles(roles);
        log.info("查询用户信息：{}", user);
        return  user;
    }
}

